SHANGHAI, CHINA - APRIL 17: (CHINA OUT) A rice vendor uses a calculator with customers standing around at the Zhenxin Grain Wholesale Market April 17, 2008 in Shanghai, China. According to the National Development and Reform Commission, China is set to raise the minimum purchase prices of rice and wheat for the second time this year as global grain prices hit the highest in two decades. Chinese Premier Wen Jiabao has said that China has abundant grain reserves of 150 million to 200 million tons. According to state media, the new round of global grain price hikes might add more pressure to China's efforts to control inflation. (Photo by China Photos/Getty Images)
